146985690 has 16 divisors (see below), whose sum is σ = 352765728. Its totient is φ = 39196176.

The previous prime is 146985647. The next prime is 146985721. The reversal of 146985690 is 96589641.

It is a super-2 number, since 2×146985690² = 43209586129552200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449732 + ... + 2449791.

It is an arithmetic number, because the mean of its divisors is an integer number (22047858).

Almost surely, 2^146985690 is an apocalyptic number.

146985690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146985690 is an abundant number, since it is smaller than the sum of its proper divisors (205780038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146985690 is a wasteful number, since it uses less digits than its factorization.

146985690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899533.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 146985690 is about 12123.7655041658. The cubic root of 146985690 is about 527.7460828571.

The spelling of 146985690 in words is "one hundred forty-six million, nine hundred eighty-five thousand, six hundred ninety".